none of the predictor variables is significant at the 5% level
each predictor variable is significant at the 5% level
x is the only predictor variable significant at the 5% level
each predictor variable is insignificant at the 5% level
What is the correct interpretation of the coefficient of multiple determination?
98.8% of the total variation in demand can be explained by the linear relationship
between demand and price.
98.8% of the total variation in demand can be explained by the quadratic
relationship between demand and price.
98.8% of the total variation in demand can be explained by the addition of the
square term in price.
98.8% of the total variation in demand can be explained by just the square term in
price.
factorial design
random block design
completely randomized design
normalized block design
partially randomized design
normalized block design
completely randomized design
factorial design
random block design
partially randomized design
What type of experimental design was employed in this study?
Completely randomized design with 4 treatments
Randomized block design with four treatments and 10 blocks
2× 2 factorial design with 10 replications
None of the above
At the 0.01 level, what conclusions can you draw from the analyses?
At the 0.01 level, subject visibility and test taker success are significant predictors
of latency feedback.
At the 0.01 level, the model is not useful for predicting latency to feedback.
At the 0.01 level, there is evidence to indicate that subject visibility and test taker
success interact.
At the 0.01 level, there is no evidence of interaction between subject visibility and
test taker success.
In the context of this study, interpret the statement: “Subject visibility and test taker
success interact.”
The difference between the mean feedback time for visible and nonvisible subjects
depends on the success of the test taker.
The difference between the mean feedback time for test takers scoring in the top
20% and bottom 20% depends on the visibility of the subject.
The relationship between feedback time and subject visibility depends on the
success of the test taker.
All of the above are correct interpretations.
What is the difference between stratified sampling and cluster sampling method? (5%)
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